JPS63183626A - Card driving device - Google Patents

Abstract

PURPOSE:To obtain a miniature and light card driving device which can move smoothly a card, by deviating the card installed to a shuttle, through the shuttle, and driving the card, while bringing it into contact with a positioning member. CONSTITUTION:By an attraction of permanent magnets 28, 29, a movement of a shuttle 11 is controlled and a main switch 30 is turned off, and the tip face of an optical card 35, and one side face are allowed to abut on a step difference part 11a of the shuttle 11, and a step difference part 11b, respectively by a spring, and positioned and installed to the upper face of a roller 21 by using a spring 15 and 17. Thereafter, by pushing the optical card 35 in the direction as indicated with an arrow, the shuttle 11 is moved, the magnets 28, 29 are separated and the switch 30 is turned on, and at the time point when a photoreflector 31 has detected a position detecting mark 38a, a current is allowed to flow to a coil 27, and in accordance with the shuttle 11, the optical card 35 is driven automatically. Subsequently, at the time of reading a data, an optical head is opposed to a seek part 37a of the optical card 35 and driven, and a data of a desired track is read.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a card drive device for transporting cards such as magnetic cards, IC cards, and optical cards.

[Conventional technology]

For example, by reciprocating an optical card and moving an optical head in a direction perpendicular to the reciprocating method, information can be optically recorded on the optical card, or information recorded on the optical card can be optically recorded. Information recording and reproducing systems using readable optical cards have been proposed.

Conventionally, in such optical card information recording and reproducing systems, a card drive device has been proposed in which the optical card is inserted into a shuttle and the shuttle is driven to cause the optical card to reciprocate together with the shuttle. .

FIG. 12 shows a conventional card drive device, in which a shuttle 1 is fitted onto a shaft 2 at one edge thereof, and engaged with a shaft 3 at the other edge to be held movably in a direction perpendicular to the plane of the paper. has been done. Protrusions 1a and lb are formed on the shuttle l in correspondence with both side edges of the optical card 40, and the optical card 4 is fitted with a spring 5 so that the upper surfaces of both side edges abut against the lower surfaces of the protrusions 1a and lb. It is held under pressure.

[Problem that the invention seeks to solve]

However, in the conventional card drive device described above, since the shuttle l is made to slide on the two shafts 2 and 3, precision is required for parallelism and positioning of the two shafts. , there is a problem that assembly becomes troublesome, and if the engagement between the shaft 3 and the shuttle l is too tight, the shuttle l will not move smoothly, and conversely, if the engagement is loose, the vertical position of the optical card 4 will not be stable. First, focus control may become impossible in the optical head. Furthermore, since the top surface of the optical card 4 is positioned by contacting the protrusions 1a and lb of the shuttle l, surface precision of the surfaces of the protrusions 1a and lb that contact the optical card 4 is required. , it is necessary to provide the protrusions la and lb over almost the entire area of both side edges of the optical card 4. As a result, there is a problem that the shuttle 1 becomes large and heavy, resulting in high cost, and also requires the use of an expensive and large drive system. Furthermore, the optical card 4 is attached to the protrusions la and l.
The spring 5 that presses the optical card 4 needs to have a relatively strong elasticity because it also needs to have the effect of making the optical card 4 flat. This is why optical card 4 to shuttle 1
There is a problem that it takes time and effort to insert and remove the optical card 4, and that the optical card 4 may be damaged at that time.

The present invention has been made in view of these conventional problems, and an object of the present invention is to provide a card drive device that is easily and inexpensively made, is compact, lightweight, and is suitably configured so that cards can be moved smoothly at all times. With the goal.

[Means and effects for solving the problem] In order to achieve the above object, the present invention has a shuttle that removably holds a card, which is movable in a first direction parallel to the plane of the card, and which is movable in a first direction parallel to the plane of the card. The shuttle is supported so as to be displaceable in a second direction substantially orthogonal to the shuttle, the shuttle is biased in one direction in the second direction by a biasing means, and a positioning member is configured to contact the card held by the shuttle. and a driving means for moving the shuttle in the first direction, and the driving means moves the card together with the shuttle in the first direction while the card is brought into contact with the positioning member by the urging means. .

〔Example〕

FIG. 1 shows a first embodiment of the present invention, and FIG.
1B is a plan view, FIG. 1B is a side view, and FIG. 1C is a front view. One edge of the shuttle 11 is slidably and rotatably fitted onto a fixed shaft 12, and the lower surface of the other edge is fitted onto a roller 13.
contact with. The roller 13 is rotatably pivoted to a lever 14 that is swingably provided on a fixed member (not shown), and a tension spring 15 rotates the shuttle 11 upward about a fixed shaft 12 to a position regulated by a stopper 16. Be biased.

The surface of the shuttle 11 that holds the optical card has stepped portions 11a and llb where the optical card insertion end surface and both side surfaces face each other.
, llc, a spring 17 for biasing the optical card upward is inserted in the vicinity of a stepped portion itb facing one side of the optical card, and a stepped portion 11 facing the other side.
A spring 18 is provided at c to bias the optical card in a direction in which one side of the optical card comes into contact with the stepped portion 11b. Also, shuttle 11
Above are rollers 19, 20 for positioning the top surface of the optical card so that both edges of the optical card held by the shuttle 11 come into contact with parts other than the information recording section.
2.1 are provided independently and freely rotatable. In this embodiment, the rollers 19 and 20 are placed near the area scanned by the optical head.

In order to drive the shuttle 11 along the fixed shaft 12, three fixed yokes 22, 23.24 are provided parallel to the fixed shaft 12 with their ends connected to each other, and the outer fixed yokes 22.24 are Permanent magnets 25 and 26 are attached to the inside with the same poles facing each other. Further, a coil 27 is wound around the intermediate fixed yoke 23 so as to be movable along the yoke, and this coil 27 is fixed to the shuttle 11. In this way, by passing current through the coil 27, the shuttle 11
is moved along the fixed axis 12.

In addition, in order to fix the shuttle 11 when inserting and removing an optical card from the shuttle 11, a permanent magnet 2 is attached to one end of the fixed shaft 12.
8 is fixed, and this permanent magnet 2 is attached to the shuttle 11.
A permanent magnet 29 is fixed so as to be attracted to the magnet 8. In addition,
One of these permanent magnets 28 and 29 can also be made of a magnetic material. In this embodiment, in order to turn off the main switch 30 when the movement of the shuttle 11 is restricted by the permanent magnets 28 and 29, that is, when an optical card is inserted or removed, the shuttle 11 is provided with an operating piece lid. With this main switch 30 in the on state, as will be described later,
In order to control the drive of the shuttle 11 by detecting a position detection mark formed on the optical card, photoreflectors 31 and 32 are placed above the shuttle 11 and spaced apart in the direction of movement of the shuttle 11.

FIG. 2 shows the configuration of an example of an optical card used in this embodiment. This optical card 35 has an information recording section 36 formed on one side of the front surface, and this information recording section 36 has a large number of tracks extending in the longitudinal direction of the card, and tracks at both ends of these tracks. Seek portions 37a and 37b are formed in which numbers and the like are recorded. In this example, two position detection marks 38a made of a highly reflective material are placed on one side edge of the optical card 35, as detected by the photoreflectors 31, 32 mentioned above.

38b is provided extending in the longitudinal direction of the card.

The operation of the above-described embodiment will be explained below.

First, as shown in FIG.
8.29 adsorption restricts its movement, and with the main switch 30 turned off, the optical card 35 is moved to the shuttle 11.
Attach to. The optical card 35 is brought into contact with the shuttle 11 by bringing its leading end into contact with the stepped portion 11a of the shuttle 11 and by bringing its side surface into contact with the stepped portion 11b by means of the spring 18.
In addition to positioning the entire shuttle 11 by the tension spring 15 and the upward rotation bias force by the spring 17.
The upper surface of the optical card 35 is positioned and mounted by bringing the optical card 35 into contact with the roller 21 using a saw that biases the optical card 35 upward. In this state, the optical head and rollers 19 and 20 are not located on the optical card 35, and the position detection mark 38a on the front side is not located on the photoreflector 31.
It is located further back than 32.

After installing the optical card 35, push the optical card 35 in the direction shown by the arrow in FIG. 3, move the shuttle 11, separate the permanent magnets 28 and 29, and turn on the main switch 30 as shown in FIG. do. Thereafter, when the photoreflector 31 detects the position detection mark 38a, current is automatically supplied to the coil 27 based on the signal to automatically drive the shuttle 11 and therefore the optical card 35. Next, the photo reflector 32 moves to the position detection mark 38.
While detecting the position a, the photo reflector 31 temporarily stops supplying current to the coil 27 based on a signal indicating that it has missed the position detection mark 38a, and the optical head starts reading data. At the beginning of this data reading,
The optical head faces the seek section 37a of the optical card 35 near the axis connecting the rollers 19 and 20, and first the shuttle 11
While the optical cart 35 is stopped, the optical head is driven in a direction perpendicular to the moving direction of the optical cart 35 to search for a desired track, and then the shuttle 11 is moved as shown in FIG. 5 by supplying drive current to the coil 27 again. Move the track and read the data of the track.

Thereafter, as shown in FIG. 6, when the photoreflector 31 detects the position detection mark 38b, the drive of the shuttle 11 is stopped based on the signal. In this state,
Since the optical head faces the seek section 37b, in this state, the optical head scans the seek section 37b to search for a desired track, and then a current is supplied to the coil 27 in the opposite direction to the shuttle 11. Therefore, the optical card 35 is moved back to read the data recorded on the track. Thereafter, when the photoreflector 32 detects the position detection mark 38a as shown in FIG. 4, the shuttle 11 and the optical card are 35 can be reciprocated to read data.

Note that when taking out the optical card 35 from the shuttle 11,
The current to the coil 27 is cut off, and the shuttle 1111 fixed axis 1
2, the optical card 35 is pulled in the opposite direction to the insertion direction to attract the permanent magnets 28 and 29, the main switch 30 is turned off, and the shuttle 11 is fixed. The optical card can be removed in this state, and a new optical card can be inserted in this state. Further, the above operation is the same when writing data to the optical card 35.

According to this embodiment, the rollers 19, 20 are in contact with the top surface of the card in the vicinity of the scanning area by the optical head to position the top surface of the optical card 35. The vertical deviation can be made extremely small, for example, 80 μm, so that focus control will not become impossible. Incidentally, in the conventional example shown in FIG. 12, since the optical card is simply positioned and mounted only with respect to the shuttle, all the unevenness of the optical card becomes a vertical deflection with respect to the optical head. Therefore, there is a vertical deflection of about 400 μm, and focus control may become impossible in the optical head.

FIGS. 7A and 7B show a second embodiment of the invention. In this embodiment, instead of fitting one side edge of the shuttle 11 to the fixed shaft 12, a concave engaging portion 41a is provided on the side edge.

41b, and these engaging portions 41a, 41b are slidably and rotatably engaged with the fixed shaft 12, and in order that these engaging portions 41a, 41b effectively engage with the fixed shaft 12, the shuttle 11 A roller 42 is attached to the lower surface of one side edge of the spring 43.
The other configuration is the same as that of the first embodiment. Therefore, in this embodiment as well, the same effects as in the first embodiment can be obtained.

FIG. 8 shows the roller 13°19.2 in the above-mentioned embodiment.
0 is a sectional view showing an example. 5. The roller 19 is rotatably fitted onto a shaft 46 attached to a fixing member 45, and the lever 14 is pivotably pivoted on the fixing member 45 about a shaft 47. wear it. A shaft 48 is fixed to the tip of the lever 14, and the roller 13 is rotatably fitted to the shaft 48, and the tension spring 1 is attached to the shaft 48.
5, it is biased upward and brought into contact with the lower surface of the shuttle 11.

Further, the roller 20 is rotatably connected to a shaft 49 fixed to the fixed yoke 22. Although not shown, the roller 21 (first
7) is similarly rotatably pivoted to the fixed yoke 22.

FIGS. 9A and 9B show examples of other mounting of the roller 13. In this example, the roller 13 is connected to a concave bearing member 5.
The bearing member 51 is rotatably mounted on the spring 52.
By attaching the roller I to the fixing member 53 via
3 is biased upward and brought into contact with the lower surface of the shuttle.

FIGS. 10A and 10B are a sectional view and a plan view showing a third embodiment of the present invention. In this example, the first. Instead of using the fixed shaft 12 and rollers 13 as in the second embodiment, the shuttle 11 is brought into contact with the balls 55, 56 and 57, 58 at the lower surfaces of its both side edges.

The balls 55 and 56 are rotatably held by springs 62 provided on the base 61 so as to come into contact with the stepped portion lie on the lower surface of the shuttle 11, and the shuttle 11 is biased upward by the springs 62. Further, the balls 57, 58 are similarly rotatably held by a spring 63 attached to a fixed member (not shown), and the spring 63 biases the shuttle 11 upward and in the direction in which the stepped portion 1.1e contacts the ball 55, 56. In this way, while positioning the shuttle 11 from side to side, the shuttle 11 is biased upward and the upper surface of the optical card 35 mounted thereon is moved by the rollers 19, 20, .
21 to determine its upper surface position. According to this embodiment, there is no need for a fixed shaft for sliding the shuttle 11, so there is an advantage that the apparatus can be made more compact.

Note that a magnetic material or a permanent magnet may be provided on the shuttle 11 so as to face the permanent magnets 25 or 26, and the shuttle 11 may be biased upward by their attractive force.

FIG. 11 shows a fourth embodiment of the invention. In this embodiment, a rack 65 is provided on one side of the shuttle 11, and a pinion 67 fixed to the output shaft of a motor 66 is engaged with the rack 65, so that the shuttle 11 and therefore the optical card 35 are driven by the motor 66. Something,
The other configurations are the same as in the first embodiment.

In each of the above-described embodiments, the upper surface of the optical card is positioned by bringing it into contact with the roller, but instead of the roller, a ball or a protruding member having an arc-shaped tip may be used. You can also do it. Further, the present invention is not limited to optical cards, but can be effectively applied to driving various other cards such as IC cards and magnetic cards.

〔Effect of the invention〕

As described above, according to the present invention, the card mounted on the shuttle is biased through the shuttle to be driven while being brought into contact with the positioning member.
Compared to the conventional method in which a shuttle is slidably mounted on parallel shafts and the card is positioned and mounted only with respect to this shuttle, it is easier and cheaper, and it is small, lightweight, and always drives the card smoothly. can do.

[Brief explanation of the drawing]

FIGS. 1A, B, and C are diagrams showing a first embodiment of the present invention, FIG. 2 is a diagram showing the configuration of an example of an optical card, and FIGS.
The figure is a diagram for explaining the operation of the first embodiment, Figures 7A and B are diagrams showing the second embodiment of the invention, Figures 8 and 9, and Figure B shows an example of how the rollers are installed. FIG. 10 shows a third embodiment of the invention, FIG. 11 shows a fourth embodiment of the invention, and FIG. 12 shows a conventional technique. 11...Shuttle 12...Fixed shaft 13...
Roller 14...Lever 15...Tension spring 16...Stopper 17...Spring 1
8...Spring 19.20.21...Roller 22.23.24...Fixed yoke 25.26...Permanent magnet 27...Coil 28.29...Permanent magnet 30...Main Switches 31, 32... Photo reflector 35... Optical card 36... Information recording section 37
a, 37 b - Sealing portions 38a, 38b...
Lid detection mark Figure 10

Claims (1)

[Claims] 1. A shuttle that removably holds a card, and a shuttle that is movable in a first direction parallel to the plane of the card held by the shuttle and movable in a second direction substantially perpendicular to the card plane. means for supporting said shuttle;
a positioning member disposed so as to be in contact with a card held by the shuttle; and a driving means for moving the shuttle in the first direction; While the card held by the shuttle is brought into contact with the positioning member by means, the driving means moves the card integrally with the shuttle to the first position.
A card drive device characterized in that it is configured to move in the direction of.